Sorry I'm running a bit behind.No, actually - its all pretty much what we have already agreed.
As a general statement, we all agree that more RM and higher AVS is beneficial, all else being equal. I have stated this repeatedly. we all agree on this. However, very rarely is all else equal. You end up with design compromises and trade-offs and where the optimum point for those trade-offs will depend on the specific vessel/owners mission/purposes.
No, they are considering different things, and when you properly read/understand them, they both can/are true. In theory and in generality, we agree more RM and AVS are beneficial. BUT when faced with the power of actual 60 breaking waves, in practice the force of the waves can simply wash out the comparatively little differences between the RM/AVS's. Both of these things are true, both of these things were also findings from the post fastnet studies.
If you take out the knockdowns and just look at capsizes it’s a different picture. There were exactly the same trends in the 1998 S-H between stability and capsize as previously observed by Wolfston. Their guide reasonably accurately indicates risk just from LPS for a raft of different monohulls. Barry Deakin is the person to talk to about this.
Kim Taylor ( NA who lambasted the clubs whitewash) pointed out that even in the absence of full stability data If you simply multiply the DL ratio by LPS and plot that against length you get an even better indication of vulnerability. It points to a poor showing within the IMS fleet in the S-H casualties.
As for the Fastnet that lead to Marchaj's tome. I thought the club report from the Fastnet was more honest that the CYCA's. It stated for a start that a lot of the racing fleet actually had no experience in a storm !
Seamanship can make a less seaworthy boat safe everyone agrees that, but small increases in wave height might not be as small as you think for lighter boats.
AMC ( Renilson 1999) found for a Farr 40 ( IMS racer) to be capsized laying ahull beam on, that with a LPS at 110 degrees it required a 4.4m wave but at 115 degrees it took a 5.4 m fully breaking wave.
That extra meter is quite significant for a 5 degree increase in LPS.